Machine for making flat fiber reed



June 1934. G. E. NORDSTROM MACHINE FOR MAKING FLAT FIBER REED Filed Oct. 10, 1932 5 Sheets-Sheet 1 117 lvdemar ffwrirzrm V day- 7! M71 9 Mae:

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June 12, 1934.

G E. NORDSTROM 1,962,257

MACHINE FOR MAKING FLAT FIBER REED Filed Oct. 10, 1932 5 Sheets-$heet 2 jde m6)? 6, E: A ardJXra/z June 12, 1934. G, E, NQRDSTROM 1,962,257

MACHINE FOR MAKING FLAT FIBER REED Filed Oct. 10, 1932 5 Sheets-Sheet 3 0'4 .7 i Q {316 9 a4 as a? t Ima I June 12,1934. G. E, NORDSTROM 1,962,257

MACHINE FOR MAKING FLAT FIBER REED Filed Oct. 10, 1932 5 Sheets-Sheet 4 unnnnm- 101 i 7 J02 If P116 6 jvdercl zr m u 22:. @j T- June 1934- G. E. NORDSTROM MACHINE FOR MAKING FLAT FIBER REED 5 Sheets-Sheet 5 Filed Oct. 10, 1932 Patented June 12, 1934 UNITED STATES MACHINE FOR MAKING FLAT FIBER REED Gustaf E. Nordstrom, Gardner, Mass, assignor to American Fibre Corporation, Gardner, Mass, a corporation of Massachusetts Application October 10,

7 Claims.

This invention relates to the manufacture of flat fiber reed from heavy kraft paper by folding or pressing operations.

A machine for this general purpose is shown in the prior patent of Nordstrum and Millett No. 1,862,387, issued June 7, 1932, and it is the gem eral object of my present invention to provide a fiber reed machine which is more simple in con-- struction and more rapid in operation than the machine shown in said patent and by which an increased quantity of a superior product may be produced.

To the accomplishment of this object I have provided improved and simplified scoring, folding and pressing devices, and have arranged these devices for more convenient operation. I have provided an improved winding device for. the fin ished reed, by the use of which twisting or distortion of the reed is avoided.

My invention further relates to arrangements and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claims.

A preferred form of the invention is shown in the drawings, in which Fig. l is a partial side elevation of my improved machine;

Fig. 2 is a fragmentary side elevation to be described;

Fig. 3 is a partial front elevation of the machine, looking in the direction of the arrow 3 in Fig. 1;

Fig. 4 is a plan view of certain driving mechanism, looking in the direction of the arrow 4 in Fig. 3;

Fig. 5 is an enlarged side elevation of the scoring and moistening devices;

Fig. 6 is a plan view, looking in the direction of the arrow 6 in Fig. 5;

Fig. 7 is a detail sectional elevation, taken along the line 7-7 in Fig. 6;

Fig. 8 is a partial plan view of a guide plate, looking in the direction of the arrow 8 in Fig. 1;

Fig. 9 is an enlarged plan view of the scoring wheels;

Fig. 10 is a sectional view of a strip of fiber after being scored;

Fig. 11 is a plan View of the first or folding rolls;

Fig. 12 is a sectional View of the fiber strip after passing through the rolls shown in Fig. 11;

Fig. 13 is a plan View of the final pressing and sizing rolls;v

Fig. 14 is a sectional side elevation, taken along the line 14-l4 in Fig. 13; r

Fig. 15 is a plan view of a guide and folding roll, looking in the direction of the arrow 15 in Fig. 14;

Fig. 16 is an enlarged partial plan view of the pressing and sizing rolls;

1932, Serial No. 637,086

Fig. 17 is a sectional view of the fiber strip after the final pressing and sizing operation;

Fig. 18 is a front elevation of certain drum traversing mechanism;

Fig. 19 is a plan view, looking in the direction of the arrow 19 in Fig. 18, and

Fig. 20 is a sectional plan view, taken along the line 20-20 in Fig. 18.

Referring to the drawings, my improved flat fiber reed machine comprises a series of vertically disposed units, two of which are indicated at A and B in Fig. 3. It will be understood that any desired number of such units may be arranged in axial series, and in the preferred form of my machine, a second series of such units'is also provided which are positioned back to back with respect to the first series of units.

Each operative unit of the machine comprises guide-barsand supports (Fig. 1) for a narrow roll R of heavy kraft paper or other material from which the reed is to be formed. The roll R. is preferably provided with a gudgeon 31 received in bearing notches 32 in the supports 30. A U-shaped guide member 33 preferably connects the bars 30 at each side of the roll R, thus stiffening the structure and providing additional guiding surfaces for the relatively thin and narrow roll.

A weight W (Fig. 2) is mounted between the supporting bars 30 and is guided for vertical movement between said bars. The weight W applies friction to the periphery of the roll R and prevents overrunning when the machine is stopped.

Each unit of the machine comprises a scoring device S (Fig. l), a moistening tank T, a folding device F, a pressing device P and winding mechanism D. The strip of paper X is drawn downward from the roll R through or past the several-named devices to a spool or drum Y on which it is wound up by the winding mechanism D. The pressing mechanism P and winding mechanism D are positively driven in a predetermined speed relation but the scoring device D and folding device F are not positively driven.

Scoring devices Each of thescoring devices S (Figs. 5 to 7) comprises a pair of scoring rolls 34 and 35 rotatably mounted in bearing blocks 36 and 37. These bearing blocks are slidable on a guideway 38 formed on a supporting bracket 39 secured to the frame 40 of the machine. The block 36 is commonly secured in adjusted position on the guideway 38 by a binding screw 41 and the bearing block 3'? is slidably retained on the guideway 38 by a screw 42 extending upward through a slot 43 in the bracket 39. A rod 44 extends outward. from the bearing block 37 through an opening'in a lug 45 at the outer end of the bracket 39.

The outer end or head of the rod 44 is pivoted in a slot in a handle 47 having two faces 48 and 49 each adapted to engage the outer face of the bracket lug 45. A tension spring 50 tends to move the bearing block 37 and roll 35 toward the roll 34.

When the handle 47 is in the normal or down position indicated in Fig. 5, the rolls 34 and 35 will be in the operative relation indicated in Fig. 9, whereas if the handle 47 is swung outward and upward, the roll 35 will be withdrawn, which is frequently desirable for threading and other purposes.

A deeply grooved guide-roll 52 (Fig. 6) is mounted on a stud 53 secured in a slotted plate 54, which in turn is angularly adjustable on a bracket 55 mounted on the movable bearing block 3'7. The guide-roll 52 may thus be conveniently adjusted to deliver the paper strip X in the desired path to the scoring rolls 34 and 35. The rolls 34, 35 and 52 are all freely rotatable and may be mounted on anti-friction bearings, as indicated for the roll 34 in Fig. 7, if so desired.

After the paper has passed through the scoring rolls 34 and 35, it appears in section substantially as indicated in Fig. 10, with the fibers more or less broken down along longitudinal lines which divide the strip into three narrow parallel portions.

In my improved machine, I preferably use paper which has been previously provided with a coating of gum or glue. After the strip leaves the scoring rolls 34 and 35, this gum or glue is moistened by being drawn across the end of a wick (Fig. 7) projecting outward through a notch or opening in the offset narrow end portion 61 of the moistening tank T, which is suitably supported on the frame 40. This tank is partially filled with water, which is drawn upward through the wick 60 and suitably moistens the adjacent gummed surface of the scored strip of paper X as it is drawn downward from the scoring rolls 34 and 35.

Obviously, an ungummed paper may also be used, in which case suitable gluing mechanism will be substituted for the moistening tank T. One form of such gluing mechanism is shown in the prior patent to Nordstrom and Millett.

Folding devices The scored paper is then drawn downward through a guide-plate 63 (Figs. 1 and 8) having an opening 64 of roughly triangular shape, with two straight sides approximately perpendicular to each other and with a third side which is curved or outwardly convex. As the paper is drawn through the opening 64, it assumes the partially folded condition shown in Fig. 8 and is adapted to be delivered between the folding rolls 66 and 67 (Fig. 11).

These rolls 66 and 67 are mounted on bearing blocks 68 and 69 (Fig. 1) supported on a bracket 70 secured to the frame 40. The manner of supporting and adjusting the rolls 66 and 67 on the bracket '70 is identical with that provided for the scoring rolls 34 and 35. A handle 71 (Fig. 1) is likewise provided for withdrawing the bearing block 69 and roll 67 from operative position for threading or other purposes. The guide-plate .63 above described is adjustably mounted on the .the condition shown in Fig. 12 and this first hold is firmly pressed against the middle portion of the strip.

Pressing devices This partially folded strip X then passes to one of the pressing devices P, the details of which are shown in Figs. 13 to 16. Each pressing device comprises a roll '75 (Fig. 13) mounted on a driven shaft '76 and provided with a rectangular annular groove '77. The shaft 76 has a gear 80 mounted at its outer end, which gear is continuously rotated by a motor M (Fig. 1) through a pinion 82 and intermediate gear 83. The shaft 76 extends longitudinally of the machine and any desired number of pressing rolls 75 may be successively mounted thereon.

A second or complementary pr ssing roll 85 (Figs. 13 and 14) is rotatably mounted on a support 86 slidable in fixed guide-ways 87 (Fig. 13). A tension spring 88 is connected at one end to the support 86 and tends to move the roll 85 toward the grooved roll '75 in the normal operation of the machine. A handle 90 is mounted on the slide 86 and may be swung upward to withdraw the roll 85 for threading or other purposes, sub- 1 stantially as previously described in connection with the rolls 35 and 67.

The inner end of the spring 88 is connected to a lever 92 (Fig. 13) pivoted at 93 to the frame of the machine and having a stud 94 adapted to be 1 engaged in a selected notch 95 in a lock plate or latch 95. By engaging the stud 94 in different notches 95, the tension of the spring 88 may be quickly and easily varied. A handle 97 is provided for convenient movement of the lever 92. i;

A guide-roll 100 (Fig. 15) is pivotally mounted on a bearing block 101 slidable in a forked guiding member 102 rigidly secured to the machine frame 40 (Fig. 13) as by bolts or screws 103 (Fig. 14). set lug 104 of the member 102 and is threaded into the bearing block 101 so that by turning the screw, the block and guide-roll may be conveniently adjusted.

The guide-roll 100 preferably comprises a coni- 3 cal portion and a convex flanged portion 111. By the co-operation of these parts, the partially folded strip of paper is delivered in the rectangular groove 77 in such condition that it may be folded by the pressure of the roll 85 to the three ply form shown in Fig. 17, with the three layers pressed firmly together and secured in final position.

It will be noted that the rectangular groove 77 acts also as a sizing groove and insures that the j finished reed shall be of a definite predetermined Width.

A stripper 112 is provided below the roll 75 to remove the reed from the rectangular groove '17,

An adjusting screw extends through an olf- 1'1.

should there be any tendency of the reed to stick in the groove. The reed then passes to a guide roll 115 (Fig. 14) mounted at the lower end of an arm 116, pivoted to the frame at 117 and engaging a stop plate 118 when in normal working be retained by a latch 120 until manually released.

Winding mechanism The winding mechanism D in its preferred form comprises a pair of drums 121 and 122 (Fig. 1) for each unit of the machine, these drums be- 1 ing mounted on drum shafts 123 and 124 rotatable in bearings in carriage frame members 125. These frame members 125 are provided with rolls 126 by which the carriage frame and winding drums are supported for longitudinal movement on fixed tracks 127 (Fig. 3).

The shafts 123 and 124 are provided with gears 128 and 129 (Fig. 4) engaging a pinion 130 having an associated gear 131 driven by a pinion 132 on the armature shaft of a second motor M. The motor M is mounted on a bracket 135 projecting outward from one of the carriage frame members 125, so that the motor M and connected gearing moves longitudinally with the winding drums.

The spools Y (Fig. 3) rest on and between the drums 121 and 122 and the heads of the spools embrace the drums, so that the spools Y are held in axial position thereby.

The gudgeons 13'? of the spools Y are received in vertical guiding openings 138 (Fig. 1) of the carriage frame members 125 and when a spool is to be removed, it may be supported on brackets 1.39 projecting laterally from the frame members 125.

A rack bar 140 (Figs. 18 and 20) projects outward from one end of the winding drum carriage and is engaged by a gear 141 on an upright shaft 142 mounted in suitable bearings secured to the end of the machine frame 40. A guide pulley 143 is mounted on a fixed stud 144 and engages the rearface of the rack bar 140, thus holding the rack bar in close engagement with the teeth of the gear 141.

A mangle gear 150 is secured to the lower end of the shaft 142 and is engaged by a mangle pinion 151 mounted at the lower end of a short shaft 152 (Fig. 18) rotatable in a slotted bearing block 153. The shaft 152 is connected through a pair of universal joints and an intermediate shaft 152 to a short shaft 154 rotatable in a bearing block 155 and having a worm gear 156 at its upper end. The worm gear 156 is continuously rotated by a worm 160 mounted at the end of the driven shaft '76.

As the mangle pinion 151 is continuously rotated, it gives the mangle gear 150 partial rotations alternately in opposite directions, and thus reciprocates the winding drum carriage and winding drums relative to the guide-rolls 115 (Fig. 1) by which the finished reed is delivered to the spools Y. Consequently the reed is wound uniformly on the spools and is at all. times delivered in a straight line to the spools without twisting or distortion of the reed.

Having thus described my improved machine, it will be evident that the machine is capable of continuous operation at relatively high speed, that the several units thereof are largely independent, and that these units may be started and stopped whenever desired and may also be independently adjusted.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what I claim is:-

1. In a machine for making fiber reed, the combination in successive operative relation of means to supply a surface gummed fiber strip to said machine, a pair of scoring rolls, a moistening device, a pair of folding rolls, a pair of pressing and sizing rolls, a winding mechanism, and to positively drive said winding mechanism and one of said pressing and sizing rolls, whereby the reed is drawn continuously through said machine.

2. In a machine for making fiber reed, the combination in successive operative relation of means to supply a fiber strip, a scoring device, and folding, pressing and winding devices, said scoring device comprising a pair of freely rotatable scoring rolls, one of which has a truncated V -shaped groove and the other of which has a cooperating truncated V-shaped annular flange.

3. In a machine for making fiber reed, the combination in successive operative relation of means to supply a fiber strip, a scoring device, and folding, pressing and winding devices, said scoring device comprising a pair of freely rotatable scoring rolls, means to advance one of said rolls yieldingly to operative position, manual means to withdraw said roll from operative position, and a deeply grooved guide roll adjustably mounted above and adjacent said scoring rolls.

4. In a machine for making fiber reed, the combination in successive operative relation of means to supply a fiber strip, a scoring device, and folding, pressing and winding devices, said folding device comprising a pair of preliminary folding rolls, one of which has a substantially V-shaped peripheral groove and the other of which has a substantially V-shaped peripheral fiange cooperating with said groove, means to yieldingly advance one of said rolls to operative position with respect to the other roll, and a fixed guide-plate associated with said folding rolls and having a substantially triangular folding opening therein.

5. In a machine for making fiber reed, the combination in successive operative relation of means to supply a fiber strip, a scoring device, and folding, pressing and winding devices, said pressing device comprising a pair of cooperating pressing rolls, means to positively rotate one of said rolls, a movable support for the second roll, a spring to advance said second roll toward said driven pressing roll, and a manual holding device for said spring, said device including a spring lever and a manually releasable latch for said lever effective to hold said spring at different selected tensions.

6. In a machine for making fiber reed, the combination in successive operative relation of means to supply a surface gummed fiber strip, means to score said strip, means to moisten the gummed surface of said strip, and means to fold and press said strip into a three ply reed.

7. In a machine for making fiber reed, the combination in successive operative relation of means to supply a fiber strip, a scoring device, and folding, pressing and winding devices, said folding device comprising a pair of preliminary folding rolls, one of which has a substantially V-shaped peripheral groove and the other of which has a substantially V-shaped peripheral flange cooperating with said groove, means to yieldingly advance one of said rolls to operative position with respect to the other roll, and a fixed guide-plate associated with said folding rolls and having a substantially triangular folding opening therein, said opening having two straight perpendicular side walls and a third outwardly convex side wall, and the three side walls of said opening cooperating to initiate preliminary folding of a scored fiber strip for said folding rolls.

GUSTAF E. NORDSTROM. 

